1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
|
// Copyright (c) 2012 The Chromium Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be
// found in the LICENSE file.
#include "ash/wm/system_modal_container_layout_manager.h"
#include "ash/session_state_delegate.h"
#include "ash/shell.h"
#include "ash/shell_window_ids.h"
#include "ash/wm/system_modal_container_event_filter.h"
#include "ash/wm/window_animations.h"
#include "ash/wm/window_util.h"
#include "base/bind.h"
#include "ui/aura/client/aura_constants.h"
#include "ui/aura/client/capture_client.h"
#include "ui/aura/root_window.h"
#include "ui/aura/window.h"
#include "ui/base/ui_base_switches_util.h"
#include "ui/compositor/layer.h"
#include "ui/compositor/layer_animator.h"
#include "ui/compositor/scoped_layer_animation_settings.h"
#include "ui/events/event.h"
#include "ui/gfx/screen.h"
#include "ui/views/corewm/compound_event_filter.h"
#include "ui/views/view.h"
#include "ui/views/widget/widget.h"
namespace ash {
namespace internal {
////////////////////////////////////////////////////////////////////////////////
// SystemModalContainerLayoutManager, public:
SystemModalContainerLayoutManager::SystemModalContainerLayoutManager(
aura::Window* container)
: container_(container),
modal_background_(NULL) {
}
SystemModalContainerLayoutManager::~SystemModalContainerLayoutManager() {
}
////////////////////////////////////////////////////////////////////////////////
// SystemModalContainerLayoutManager, aura::LayoutManager implementation:
void SystemModalContainerLayoutManager::OnWindowResized() {
if (modal_background_) {
// Note: we have to set the entire bounds with the screen offset.
modal_background_->SetBounds(
Shell::GetScreen()->GetDisplayNearestWindow(container_).bounds());
}
if (!modal_windows_.empty()) {
aura::Window::Windows::iterator it = modal_windows_.begin();
for (it = modal_windows_.begin(); it != modal_windows_.end(); ++it) {
gfx::Rect bounds = (*it)->bounds();
bounds.AdjustToFit(container_->bounds());
(*it)->SetBounds(bounds);
}
}
}
void SystemModalContainerLayoutManager::OnWindowAddedToLayout(
aura::Window* child) {
DCHECK((modal_background_ && child == modal_background_->GetNativeView()) ||
child->type() == aura::client::WINDOW_TYPE_NORMAL ||
child->type() == aura::client::WINDOW_TYPE_POPUP);
DCHECK(
container_->id() != internal::kShellWindowId_LockSystemModalContainer ||
Shell::GetInstance()->session_state_delegate()->IsUserSessionBlocked());
child->AddObserver(this);
if (child->GetProperty(aura::client::kModalKey) != ui::MODAL_TYPE_NONE)
AddModalWindow(child);
}
void SystemModalContainerLayoutManager::OnWillRemoveWindowFromLayout(
aura::Window* child) {
child->RemoveObserver(this);
if (child->GetProperty(aura::client::kModalKey) != ui::MODAL_TYPE_NONE)
RemoveModalWindow(child);
}
void SystemModalContainerLayoutManager::OnWindowRemovedFromLayout(
aura::Window* child) {
}
void SystemModalContainerLayoutManager::OnChildWindowVisibilityChanged(
aura::Window* child,
bool visible) {
}
void SystemModalContainerLayoutManager::SetChildBounds(
aura::Window* child,
const gfx::Rect& requested_bounds) {
SetChildBoundsDirect(child, requested_bounds);
}
////////////////////////////////////////////////////////////////////////////////
// SystemModalContainerLayoutManager, aura::WindowObserver implementation:
void SystemModalContainerLayoutManager::OnWindowPropertyChanged(
aura::Window* window,
const void* key,
intptr_t old) {
if (key != aura::client::kModalKey)
return;
if (window->GetProperty(aura::client::kModalKey) != ui::MODAL_TYPE_NONE) {
AddModalWindow(window);
} else if (static_cast<ui::ModalType>(old) != ui::MODAL_TYPE_NONE) {
RemoveModalWindow(window);
Shell::GetInstance()->OnModalWindowRemoved(window);
}
}
void SystemModalContainerLayoutManager::OnWindowDestroying(
aura::Window* window) {
if (modal_background_ && modal_background_->GetNativeView() == window)
modal_background_ = NULL;
}
bool SystemModalContainerLayoutManager::CanWindowReceiveEvents(
aura::Window* window) {
// We could get when we're at lock screen and there is modal window at
// system modal window layer which added event filter.
// Now this lock modal windows layer layout manager should not block events
// for windows at lock layer.
// See SystemModalContainerLayoutManagerTest.EventFocusContainers and
// http://crbug.com/157469
if (modal_windows_.empty())
return true;
// This container can not handle events if the screen is locked and it is not
// above the lock screen layer (crbug.com/110920).
if (Shell::GetInstance()->session_state_delegate()->IsUserSessionBlocked() &&
container_->id() < ash::internal::kShellWindowId_LockScreenContainer)
return true;
return wm::GetActivatableWindow(window) == modal_window();
}
bool SystemModalContainerLayoutManager::ActivateNextModalWindow() {
if (modal_windows_.empty())
return false;
wm::ActivateWindow(modal_window());
return true;
}
void SystemModalContainerLayoutManager::CreateModalBackground() {
if (!modal_background_) {
modal_background_ = new views::Widget;
views::Widget::InitParams params(views::Widget::InitParams::TYPE_CONTROL);
params.parent = container_;
params.bounds = Shell::GetScreen()->GetDisplayNearestWindow(
container_).bounds();
modal_background_->Init(params);
modal_background_->GetNativeView()->SetName(
"SystemModalContainerLayoutManager.ModalBackground");
views::View* contents_view = new views::View();
// TODO(jamescook): This could be SK_ColorWHITE for the new dialog style.
contents_view->set_background(
views::Background::CreateSolidBackground(SK_ColorBLACK));
modal_background_->SetContentsView(contents_view);
modal_background_->GetNativeView()->layer()->SetOpacity(0.0f);
}
ui::ScopedLayerAnimationSettings settings(
modal_background_->GetNativeView()->layer()->GetAnimator());
modal_background_->Show();
modal_background_->GetNativeView()->layer()->SetOpacity(0.5f);
container_->StackChildAtTop(modal_background_->GetNativeView());
}
void SystemModalContainerLayoutManager::DestroyModalBackground() {
// modal_background_ can be NULL when a root window is shutting down
// and OnWindowDestroying is called first.
if (modal_background_) {
ui::ScopedLayerAnimationSettings settings(
modal_background_->GetNativeView()->layer()->GetAnimator());
modal_background_->Close();
settings.AddObserver(views::corewm::CreateHidingWindowAnimationObserver(
modal_background_->GetNativeView()));
modal_background_->GetNativeView()->layer()->SetOpacity(0.0f);
modal_background_ = NULL;
}
}
// static
bool SystemModalContainerLayoutManager::IsModalBackground(
aura::Window* window) {
int id = window->parent()->id();
if (id != internal::kShellWindowId_SystemModalContainer &&
id != internal::kShellWindowId_LockSystemModalContainer)
return false;
SystemModalContainerLayoutManager* layout_manager =
static_cast<SystemModalContainerLayoutManager*>(
window->parent()->layout_manager());
return layout_manager->modal_background_ &&
layout_manager->modal_background_->GetNativeWindow() == window;
}
////////////////////////////////////////////////////////////////////////////////
// SystemModalContainerLayoutManager, private:
void SystemModalContainerLayoutManager::AddModalWindow(aura::Window* window) {
if (modal_windows_.empty()) {
aura::Window* capture_window = aura::client::GetCaptureWindow(container_);
if (capture_window)
capture_window->ReleaseCapture();
}
modal_windows_.push_back(window);
Shell::GetInstance()->CreateModalBackground(window);
window->parent()->StackChildAtTop(window);
}
void SystemModalContainerLayoutManager::RemoveModalWindow(
aura::Window* window) {
aura::Window::Windows::iterator it =
std::find(modal_windows_.begin(), modal_windows_.end(), window);
if (it != modal_windows_.end())
modal_windows_.erase(it);
}
} // namespace internal
} // namespace ash
|
